In horses, black (B) is dominant over white (b), and trotter (T) is dominant over pacer (t). In the cross TtBb x TtBb, how many of the offspring will be black trotters?

A human male has ____ chromosomes with ____ sex chromosomes.

The study of the geographical distribution of living organisms is

Prokaryotic cells reproduce by ___.

The ability of an organism to survive and reproduce in its local environment is its

What is the phenotype ratio in the cross TtGg x ttgg?

Genetic drift occurs more often in a ___ population.

The genetic code is universal.

Each codon codes for one specific amino acid or the start or stop of translation.

Structures that are functional in an ancestor but reduced in size and non-functional in a descendent are